In situ comonomer generation in olefin polymerization

Details In situ comonomer generation in olefin polymerization In situ comonomer generation in olefin polymerization

1988-02-24

1989-04-11

Garvin, Patrick P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526106, 526352, C08F 462

Patent

active

048207853

ABSTRACT:
A catalyst system is produced by first forming a chromium catalyst on a predominantly silica support, activating in an oxygen-containing ambient and thereafter subjecting the thus activated composition to carbon monoxide reduction. The resulting reduced supported chromium catalyst composition is then precontacted with a cocatalyst selected from trialkyl boron compounds and dialkyl aluminum alkoxide compounds, preferably triethyl borane and thereafer contacted with ethylene. This results in a catalyst system which produces comonomer in situ so as to give tough, flexible ethylene copolymers from an essentially pure ethylene feed.

REFERENCES:
patent: 2824089 (1858-02-01), Peters et al.
patent: 2898326 (1959-08-01), Peters et al.
patent: 3082195 (1963-03-01), Peters et al.
patent: 3759918 (1973-09-01), Yamaguchi et al.
patent: 3891611 (1975-06-01), Abe et al.
patent: 3947433 (1976-03-01), Witt
patent: 3959178 (1976-05-01), Hogan
patent: 4065612 (1977-12-01), Hamer

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